Retrieving impulse response function amplitudes from the ambient seismic field
نویسندگان
چکیده
منابع مشابه
Retrieving impulse response function amplitudes from the ambient seismic field
S U M M A R Y Seismic interferometry is now widely used to retrieve the impulse response function of the Earth between two distant seismometers. The phase information has been the focus of most passive imaging studies, as conventional seismic tomography uses traveltime measurements. The amplitude information, however, is harder to interpret because it strongly depends on the distribution of amb...
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The ambient seismic wave field, also known as ambient noise, is excited by oceanic gravity waves primarily. This can be categorized as seismic hum (1-20 mHz), primary microseisms (0.02-0.1 Hz), and secondary microseisms (0.1-1 Hz). Below 20 mHz, pressure fluctuations of ocean infragravity waves reach the abyssal floor. Topographic coupling between seismic waves and ocean infragravity waves at t...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 2017
ISSN: 0956-540X,1365-246X
DOI: 10.1093/gji/ggx155